This document provides an overview of forensic science and describes some scenarios that forensic scientists may encounter to help criminal investigations. It discusses how fingerprints were found at a crime scene and matched to a suspect's prints. It also describes a scenario where teeth impressions from a bite mark on a victim were used as evidence, showing a missing tooth that could identify the biter. The document aims to demonstrate how various forensic science techniques like fingerprints, DNA, autopsy results, and bite mark analysis can help solve crimes.